Bernal-stacked bilayer graphene (BLG) [1]} is a van der Waals (vdW) layered two-dimensional (2D) system with the minimum possible layer number [Fig. 1(a)]. It provides an excellent platform to explore exotic phenomena, such as electrically-controllable band gap [2]}, topological valley Hall effect [3]}, or superconductivity in a twisted bilayer [4]}. The low-energy electrons in BLG are located near two Dirac points \(K\)  and \(K^{\prime }\)  [Fig. 1(b)], referred to as valleys. Isolated ideal BLG is not magnetic [1]}, however magnetism can be induced by external means, such as magnetic proximity effect [6]} or intercalation by magnetic atoms [7]}, opening the route towards 2D spintronics applications.
